Arkansas - Agricultural Communication Services - University of ...

Arkansas Animal Science Department Report 2001
Table 3. Effects of monensin and lasalocid on phosphorus, calcium,
and magnesium metabolism of wether lambs.
Dietary treatment
Item Control Monensin Lasalocid SEM Significance a
Phosphorus
Intake, g/d 3.38 3.43 3.71 0.14
Fecal excretion, g/d 2.34 2.39 2.58 0.16 L †
Urinary excretion, g/d 0.17 0.10 0.22 0.098
Apparent absorption
g/d 1.04 1.05 1.13 0.14
% of intake 30.7 30.2 30.5 3.93
Retained
g/d 0.90 0.87 0.95 0.12
% of intake 25.4 27.3 24.3 3.02
% of absorbed 86.2 88.0 83.2 7.09
Calcium
Intake, g/d 4.40 4.48 4.91 0.18 L †
Fecal excretion, g/d 2.94 3.18 3.27 0.17
Urinary excretion, g/d 0.39 0.41 0.48 0.079
Apparent absorption
g/d 1.46 1.30 1.64 0.17
% of intake 33.3 28.6 33.3 3.25
Retained
g/d 1.08 0.89 1.17 0.18
% of intake 24.8 19.3 23.8 3.91
% of absorbed 73.0 51.9 71.8 12.0
Magnesium
Intake, g/d 2.01 2.00 2.19 0.078
Fecal excretion, g/d 1.05 0.84 1.17 0.071 M †
Urinary excretion, g/d 0.38 0.60 0.43 0.031 M **
Apparent absorption
g/d 0.96 1.17 1.01 0.070 M †
% of intake 48.1 58.0 46.1 2.75 M *
Retained
g/d 0.58 0.56 0.59 0.048
% of intake 29.1 28.0 26.8 2.27
% of absorbed 60.3 47.4 58.1 2.32 M **
a L= lasalocid vs. control, M= monensin vs. control.
** P< 0.01
* P< 0.05
† P< 0.10
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